Bolster



FIG. 1 is an perspective view of a bolster;

FIG. 2 is a top view;

FIG. 3 is a side view showing one alignment of the feet of the bolster;

FIG. 4 is an alternate side view showing an alternate alignment of thefeet of the bolster; and,

FIG. 5 is a bottom view.

The ornamental design for a bolster, as shown.